Home / 1,379,910.27-1,904,261.63-768,053.28

Finding the Fourth Proportional to 1,379,910.27, 1,904,261.63 and 768,053.28

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Solution

The fourth proportional to 1,379,910.27, 1,904,261.63 and 768,053.28 is: 1,059,905.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,910.27 : 1,904,261.63 = 768,053.28 : x
  2. Step 2: Convert to fraction form
    1,379,910.27/1,904,261.63 = 768,053.28/x
  3. Step 3: Cross multiply
    1,379,910.27x = 1,904,261.63 × 768,053.28
  4. Step 4: Simplify right side
    1,379,910.27x = 1,462,574,387,059.38
  5. Step 5: Solve for x
    x = 1,462,574,387,059.38/1,379,910.27
  6. Step 6: Final answer
    x = 1,059,905.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.